//视频
.video{
  height: 70%;
  width: 80%;
  margin: 0 auto;
  video{
    display: block;
    height: 100%;
    width: 100%;

  }
}
.background_1{
  height: 100%;
  width: 100%;
  position: absolute;
  top:0;
  left: 0;
  background: url("../images/background.png");
  overflow: hidden;


}
.top{
  height: 100px;
  width: 100%;
  margin: 0 auto;
  margin-top: 40px;
  position: relative;
  .title{
    height: 100%;
    font-size: 5em;
    color:#fff;
    display: inline-block;

    width: 100%;
    text-align: center;

  }
  .hint{
    position: absolute;
    top: 10px;
    left: 196px;
    display: none;

  }
  .log{ opacity: 0;
    //float: left;
    height: 100%;
    width: 80px;
    //margin-left: 100px;
    display: inline-block;
    position: absolute;
    top: 0;
    left: 100px;
    img{
      height: 100px;


    }
  }
}
.ctrl{
  position: absolute;
  bottom: -290px;
  left:150px;
  height: 300px;
  width: 200px;
  //transform: translataY(100px);
  //background: #f00;
  //transition: bottom 1s;
  .about{
    cursor: pointer;
    height: 50px;
    background: #000;
    color:#fff;
width: 100px;
    text-align: center;
    line-height: 50px;
    margin-top: 10px;

  }
.about:hover{
  background: #FFC926;
}
  .second{
    width:120px;
  }
  .fourth{
    width:150px;
  }
  .music{
    width: 100%;
    height: 50px;
    color:#fff;
    //margin-top: 10px;
    line-height: 50px;

  }
  i{ cursor: pointer;
    height: 36px;
    width: 36px;
    margin-right: 6px;
    line-height: 36px;
    text-align: center;
    background: #000;
    display: inline-block;
    font-size: 26px;
    vertical-align: middle;

  }


  .audio{
    img{
      //margin-top:10px;
      vertical-align: top;
    }
  }
}
.first_1{
  position: absolute;
  top: 40px;
  left: -400px;
  height: 600px;
  width: 400px;
  background: #FFC926;
}